Home / 14,396.45-19,860.31-8,424.42

Finding the Fourth Proportional to 14,396.45, 19,860.31 and 8,424.42

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Solution

The fourth proportional to 14,396.45, 19,860.31 and 8,424.42 is: 11,621.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,396.45 : 19,860.31 = 8,424.42 : x
  2. Step 2: Convert to fraction form
    14,396.45/19,860.31 = 8,424.42/x
  3. Step 3: Cross multiply
    14,396.45x = 19,860.31 × 8,424.42
  4. Step 4: Simplify right side
    14,396.45x = 167,311,640.54
  5. Step 5: Solve for x
    x = 167,311,640.54/14,396.45
  6. Step 6: Final answer
    x = 11,621.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.